Kyrsten Sinema is an American politician serving as the senior United States Senator from Arizona. She was first elected to the Senate in 2018, becoming the first openly bisexual person to be elected to the U.S. Congress. Before her Senate career, Sinema served in the U.S. House of Representatives and the Arizona State Legislature. Sinema is known for her centrist approach, often working across party lines. She has focused on issues such as healthcare, immigration, and economic development. Her unique political style and willingness to engage with both Democrats and Republicans have made her a notable figure in contemporary American politics.